Pulley-coupling.



J. 'NEWMANN.

PULLEY COUPLING.

APPLIOATION FILED MAY 16, 1910. 1131mm) JULY 29, 1911.

1 003 419 3 Patented Sept. 19, 1911 2/ My 52 v M/ I m z y Specification of Le:

\ ed coup:

slaw-e 1%;

iii '"mnpr and ate tamnewandn 1 uhrrgs, 01 whlcn the f y :sieev flown in my a con'cai F'ULIIE COU LIN 21111: 01 threaded cap or lo ing one 'W he I that Chi-Bale t shown 1n iitension 1 in. WI

Serial N0. 641,382,

it to clamp t m shaft in the 311515111651. flescribed 131 my above Ium'md prior patent. Tie pill" s}; 31m be LEOEL'CGQ onto the sleeve by Inwns 8 which at the Sam? ime will cave the tongue- :md prevent it trim). gumpmg out of its locking" A 0' iii-Tn.

1J1:- modlfisahon Shown in. 3 and bar 9 is Di.

the part 6121p b d.

. y pro 00% outs :mni

. nich the circulu i'l" d zfi of: the Mimi mm. part 20 To 110M the be screwed J understend an auxiliary safety device for coupling the aforedescribed elastic sleeve to the shaft, in addition to the wedges 15 or as the 'sole coupling means.

What I claim and desire to secure by .Let-

ters Patent is:

1. A coupling for pulley and shaft, comprising a conical, spirally-slotted sleeve and adapted to carry and be compressed by the pulley, said sleevehaving spiral, in- Wardlv tam ed slots and Wedges in said slots and adapted to grip the shaft locking the sleeve to the latter.

3. A coupling for pulley and shaft, comprising a conical sleeve mounted on the shaft and adapted to carry and be compressed by the pulley, said sleeve having spiral, inwardly-taperedrslots, wedges fitting in said slots and adapted to grip the shaft locking the sleeve to the latter and safety tongues at one end of said sleeve.

' In testimony whereof I affix my signature in presence of two witnesses.

JOHN NEWMANN.

Witnessesz Mnx D. ORDMANN, :ELLIS V. LEVY.. 

